4Ghosh, A. Woher, D R, Andrews, J G, et al. Broad band wireless access with WiMAX- 802. 16: current performance benchmm'ks and future potential [ J ] . IEEE Communications Magine, 2005, 43 (2): 129-136.
7IEEE 802.16. Air interface for fixed broadband wireless access systems.2001.
8IEEE 802.16a. Air interface for fixed broadband wireless access systems-amendment2: medium access control modification and additional physical lsayer specifications for 2-11 GHz, 2003.
